Curb-pump



HINDS.

CURB PUMP.

APPLICATION FILED SEPT.'26| 1917.

mmm My m m2;-

6 SHEETSw-SHEET l.

Patented July 6 WEIL 6 SHETS-SHEET 2- S. HINDS.

CURB PIIIvIP.

w I I I I I II I. I VII j /Hw 6 Q v I If I I o I I I I I I I I g Y I IWW, II II I Q I II II III II I I I III I II F m I d I I 19345774 APPLICATION FILED sEPT.26 Ign,

la I I S. HINDS..

CURB PUMP.

APPLICATION mw sEPT.26, 1917. 1,345,774. Pwbnd July 192W e SHEETS-SHEET s.

S.-H|NDS.

CURB PUMP.

APPLICATION FILED SIL-P126; 179|?. L345,774 Patented July MM.,

6 SHEETS-SHEET 4- S. HINDS.

CURB PUMP. APPLICATION FILED SEPT-26,1917- Patented July 6 1920..

6 SHEETS-SHEET 5.

'S. HINDS.

CURB PUMP.

APPLICATION FILED sEPm, 1911.

.Patented July 192ML 6 SHEETS-SHEET 6 all lli

SHERWOOD HINJDS, F FORT WAYNE, llhlllllld.

cn-rnire.

Application tiled September 26, 191'l'.

To all 'whom t may concern.'

lle it known that I, Smartwool) HINDS, a citizen of the United States, residing at Fort ll'ayne, in the county of Allen and State ot lindiana, have invented certain new and useful improvements in Curb-Pumps, ot which the following is a specification.

'lhis invention relates to a pump in which the operating mechanism is entirely inclosed but which is provided with an external hose and operating crank lock as one oit the novel features of the construction. @ther objects of the invention are to provide a double indicator which may be observed from both sides ot the pump, and to provide an adjustable take-up and accuracy registering mechanism for varying the discharge of the pump upon each stroke thereof. @their novel objects will appear' hereinafter..

rthe invention consists in the novel construction, combination and arrangement ot the several parts.

ln the accompanying drawings:

Figures 1, 2 and 3 are front, side and rear elevations respectively, of a pump constructed in accordance with the principles of the invention,

Fig. t is a sectional view of thedispensing cylinder and filter,

Fig. 5 is a sectional. View ol a portion ot the pump showing the hose, cranlr handle and pump rack locking means,

Fig. 6 is an enlarged view ol the upper portion ot the pump casing,

Fig. is a sectional view ot the operat- Ving'mechanism talren at right angles to that shown in Fig. 5,

Fig. 8 is a view partly in section showing the upper discharge valve,

Fig. 9 is a diagrammatic view to illustrate the operation of the mechanism,

Fig. 10 is a tace view oi the customers dial.

Fig. 11 is a face view partly in section ot the adjustable take-up mechanism. and

Fig. 12 is a sectional view ot a portion ol the mechanism shown in Fig. 11.

ln man v cities and places where liquids, particularly combustible liquids. are dis'- pcnsed. there are strict ordinances and laws governing the use ot' the dispensing appa- -ratus @ne of the objects of the present invention is to provide a pump :lor dispensing gasolcnc. oil and the like, which is Specification of Letters lPjatent.

-will be divided into a base Patented daily h, 12d. serial no. manto.

entirely inclosed so that it may be located along the side or curbot' a thoroughfare with theleast possible obstruction and without'requlring a Yseparate housing or a casing which must be opened and closed in order 'to operate the dispensing mechanism. Uf rcourse, it is necessary to lcranlrand a discharge hose, but in the present invention, these two 'manently located on the outside of have an operating members are parthe caslng.A ln a pump of this type 1t is desirable to use a reciprocating type of pump and in `order to preserve the accuracy of discharge by an expanding segment mechanism which,

together with a take-up spring, makes constantthe throw oir' the indicator dial tor all variations of the stroke.

For convenience in reference, this pump l, a middle portion 2, and a top 3. ln the base is located the well known pumping mechanism which comprises a pumping cylinder 4L in which a piston 5 is moved by means ot' a rod 6 at tached toa raclr 7. 'l`he plston is provided with openings 8 and a valve 9 tor admitting Huid to the cylinder in one direction. At the bottom ot the cylinder is a base forming a passage l() in which is a foot valve 11 for admitting liquid from a suction pipe 12. llt the top ot' the cylinder is a manifold 13 which connects it with the top ot a centrifugal filter 1-l having means torming an outer spiral passage, a .tilter screen 15 and a central passage 16 in which is a water or impurity discharge pipe extending throu h the top. the passage communicating with t e chamber 1iat the top trom which extends a discharge pipe 18 leading through the midtill dle portion ot the pump and into the top 3 thereot' (see Fig. 8) where there is a fitting 19, open at the top` provided with a seat for a valve 20. Above this valve is a threaded opening into which a pipe fitting 21 is in serted and a discharge hose 22 is attached thereto.

ln order to control the valve 20 a stern 23 attached to the valve is pivoted to a lever 2l which is pivotcd at one end to a block 25 slidable upon a link 26 substantially parallel with the stem 23 and with a spring 27 tending to hold the block 25 downwardly upon an adjustable nut 28. The other end of the lever 24 is connected to a rod 29 which extends downwardly into the middle portion 2 of the pump where it is connected by' means of a crank 30 with a shaft 31 extending through the pump casing and having a handle 32 on the outside thereof. The rotation of this handle -opens or closes the valve 20 and of course the valve mustbe opened before liquid can be discharged from the pump. It is closed when the pump is not in use to prevent leakage and evaporation.

i In the middle portion of the pump is an operating shaft 33 tdwhich a pinion 34 is secured that meshes with the rack7. This shaft extendsthrough the pump casing and an operating crank 35 is secured to it with a pivoted handle 36 which may be rotated to take two positions, one as shown in Fig.

7, and the other opposite thereto, as shown in Fig. 2, and in the latter position it could n ot be operated except a portion of a revolution, because it would engage the casing of the pump. In order to hold the handle.

and the crank 35 so that it cannot be operated, and in order also to lock the discharge hose in position, the latter is provided with a nozzle 37 which may be seated between a pair of hooks 38 projecting from one side of the pump casing (see *igs 3 and 5)', and mounted in the casing is. an arm 39 provided with an eye 40 for receiving the handle 36 and a hook 41 formed with anA outer bent portion 42 which is movable across the outer sides of the hooks 38, the arm 39 and the hook 41 being connected together for "simultaneous rotation by means of a shaft 43. When the nozzle 37 is placed v in the hooks38 and the handle 36 isengaged in the eye 40, the nozzle willbe locked in place by the bent portion 42 of the hook 41 and a lock 44, of any'well known form, is provided for securing the parts in this locked position from which they can be disengaged only by the opening of the lock, whereupon the arm 39 will take the dotted position shown in Fig. 2, and the bent portion 42 of the hook 41 will take the dotted position shown in Fig. 5.

Provision is also made for insuring that when the handle and the hose are in their locked position, the pump itself lwill be in a particular position, namely with the rack and the iston at the lower end of their stroke. f ecured tothe inner end 'fof hook 41 is an eccentric 45 which/is en'aged by a member 46 pivoted on the insi e of the casing of the pump and formed with a foot 47, which can be moved to engage the top of the rack 7 only in its lowermost position.

When the hook 41 is rotated to release the nozzle of the hose, the eccentric 45 will also moved into orout of the path of the rack 7 by means of a crank 50 attached to a shaft 51 which extends through the casing and has an indicator 52 on the outside thereof lto show the position of the link. This block 49 is supported by a threaded rod 53 which i-n turn bis threaded through a web of the pump casing in position to be engaged by the rack 7, the end of the rod `53 thereby constituting an adjustable stop for the rack when the link 48 is moved out of engaging position. The position of the block 49 and also of the rod 53 can be independently varied and maintained by means of the lock nuts 54, the blockbeing held against rotation by means of a pin 55 which extends through a perforated tail-piece 56 extending `from the block. When the link 48 is moved to take the dotted line position, as shown by Fig. 9, the rack 7 will be limited in its upward movement by the rod 53.

The operator of this pump is usually on one side of it while the customer is on the other side and an indicating dial is provided on each of the opposite sides for them. The customers dial 57 is shown more clearly in -Figz 1 0 and the operators dial 58, which compr1ses simply a pointer 59, is shown in Fig. 3. The customers dial is also provided with a pointer 60 which is mounted oli a common shaft 6l with the other pointer 59. Secured to the operating shaft 33 is a plate 61 formed with outwardly curved slots 62 in which pins 63 are slidable. These pins are secured to circular segments 64 and the segments can be moved radially outward from the axis of shaft 33 by a relative movement of the plate 6l and the said segments. To one of the segments a flexible band 65, preferably of metal, Ais secured by means of a fastening device 66. This band or ribbon 65 is wound upon and secured to a drum 67 which in turn is rotatably mounted upon a hub portion 68 of a fixedplate 69, the face of which constitutes the dial 57. Secured to the plate 69 and the drum 67 is a spring 70 which tends to keep the band 65 taut and to draw upwardly on it to take up the lost motion between the rack 7 and the driving pinion 34. In the plate 69, and extending around the graduations of the dial 57, is a circular slot 71 through which projects a pointer 72 extending from the ribbon drinn 67. At one end of the slot is the designation 0 and at other points around the slot are designations such as fl gal., 1 gal., and 2 gals.

.designating the quantities pumped for a given position of the pointer 72, it being oblll ifa

gettata vious that the pointer will assume these positions upon the actuation of the pump rack because of the connection ofthe band 65.

lreely rotatable on the' hub ot the mem; ber 69 between it and the ribbon drum 67 is a Geneva stop gear 73 which has lugs 7 4l adapted to be engaged b a projection of the ribbon drum 67. his gear also has: rearwardly extending toothed portions 76 which are spaced from the lugs 74 and .at the bottom of the plate 69 as shown iii-Fig. l2, is a Geneva pinion 77 with which the gear 73 engages to rotate the pinion a predetermined amount upon each engagement ot the toothed portion 76 with it. VAs the pump described is a two gallon measure and as it may be set to pump either oneor two gallons ateach stroke, by the adjustment ol the member 52, which controls link 48, it is obvious that the Geneva pinion must be rotated twice for a full stroke ot the pump; in.\other words, if the ribbon drum 67 is simply rotated until the pointer' 72 reaches the one gallon mark, the stop 75 will engage only the uppermost lug 7d (see F ig. lll) which will move the lowermost toothed portion 76 to engage the' pinion 77; but it the stop 75 is moved the entire length of the slot 7l, both toothed portions 76 wlll engage the pinion v7 7 causing it to lbe twice actuated. Ul course, the reverse rotation ol the Geneva stop gear `73 engages the pinion 77 and moves it backwardly the same amount so that the gear 73 is simply oscillated back and torth one or two unit spaces by the engagement ot stop 75, depending uon the length ot stroke of the pump. eshing with the pinion f77 is a gear 78 which carries a pawl 79 and this pawl engages a ratchet gear nxed to the shalt 61. 'lhe rotation of the ear 78 in one direction causes the pawl 79 to actuate the ratchet gear 80 and cause a corres ending rotation ot the pointers 59 and 60 w ich are attached to the shalt 6l. Adjacent'the ratchetgear 89 is a hired member 8l which may be se cured to the hub extension 68 ol the plate member 69, and mounted on this member 8l is a holding pawl 82 which engages the ratchet gear 89 and prevents its reverse rotation when the actuating pawl 79 is moved reversely and idly over the gear.

'lhe ribbon drum 67 is preterably termed with a hub extension 83 upon which is l'reely mounted a driving gear'8l. Between this' gear and the ribbon drum 67 is a spring pressed roller clutch 85 which causes the rotation ol theY gear 8l when the .ribbon drum is rotated in one direction. etween the lined member 8l and this gear 8lis a roller clutch 86 which prevents the rotation ot the gear 8l `in the reverse direction. lllleshing with the gear 8l is a spur and bevel pinion 87 which is directly connected by a driving member 88 with a register 89 visible trom the outsidei ol the casingby raising igs. 2 and a covering lid 89 as shown in 3. As the driving gearl is actuated only in one direction of rotation and as the mechanism described is -a single action pump, it is obvious that the register will accurately record the total amount discharged by the 'Ill pump, even though 'an'insullicient' quantity pointers 59 and 60can be treely. rotated in one direction to set them at the zero points. rlhis is desirable lor the reason that when a customerbuys a quantity ot the liquid dispensed, the pointersl are set at zero marks and the operation ot the pump, as above described will cause the actuation ot the pointers to record the units of the quantity pumped, whereuponl the pointers can again be set upon the zero marks without in any way adecting the quantity register 89 which records the total amount pumped. Y

ln varying the length ot stroke of the pump rack to insure the accuracy ol the pump, it is obvious that the graduation 'ot roo the slot 7l would not remain the same lor.,

the did'erent lengths of stroke; that is, il the pump were set so that the pointer 72 would register exactly withthe two gallon graduation on the slot 7l and then it were found that it would be necessary to increase the length ol stroke ol the pump in order to pump exactly two gallons, the pointer 72 would not stop at the two gallon mark when thepump stroke was increased unless some adjusting means were provided lor taking care ot the increased stroke. This'is the object and tunction ot the adjustable circular segments 6l which are attached to the l plate 61., lor by moving them inwardly and outwardly the length ot the path ot travel ot the pointer'7 2 may be varied whenever the length ol stroke ot" the pump rack is varied sothat the pointer will always register with the graduations ot the slot thereby insuring also that the total register 89 will accurately record the amount pumped. Brieldy stated it maybe said 'that the segments 6l will be moved inwardly when the length ol the pump stroke is increased and vice vers/a.

ln operation, assuming the hose and the lllllb lld lltll crank handle to be locked, the lock ll is hrst i tation of -the knob 93 at pump. The crank 35 is then operated to dle36 of the-crank'35 and disengagement of thenozzlel from the hooks 38.- kThe rotation of this hook 41 also releases. the rack lockingmember 46by the i engagement of the eccentric 45 therewith, moving the foot 47 handle 36 is then rotated from its locking position to the operating position, as shown in Fig. 7,- the' valve-'20 isv raised by the operationof the arm 32 at the rear side of the pump, the indicator 52 is turned to the position the link 48 so that the pump rack can be operated for half its stroke or a fullstroke, and the indicators 59 and 60 may be set at zero position on their dials by the rothe rear of the raise the rack .7--w`hich draws the liquid to be discharged from the pipe 12 into the pump cylinder 4 and forces the liquid through the lilter 14 and the pipe 18 past the valve 20 and through the discharge Walls 22. The

msms are,

reciprocation of the rack 7 causes the actuation of the units registering mechanism which records the number of units of measure (gallons) of the fluid pumped and also the actuation of the registering counter which thereupon measures the entire discharge .of the pump regardless of the number of units 4measure pumped. The various adjustments for the accuracy of the mechaof course, made whenever necessary, it being observed, however, that with this style of pump, it is unnecessary to have any access 'whatever to thel interior of the casing of the pump in order to effect the ordinary operation thereof. In locking the pump, theb various unlocking operations above set forth are practically reversed, the

vrack 7 being locked only at the lowermost end of the stroke and the crank handle and 4the nozzle being locked in position when the arm 39 is rotated upwardly to engage the handle 36 in the eye 40 thereof from which the parts can be unlocked only by the insertion of a proper key in the lock 44. In thel locked position, it will be observed thatthe i handle 36 is held tihtly against the side of the pump casing w ere'is isnot easily engaged. l What I claim` is: 1. A curb pump comprisin mechanism, an operatingl mem er', a discharge hose,- a casing permitting the out of engagement withA `the top'of the rack. The

right or left to .tion with the locking means, and

.to engage the rack and lock it engaging the hose and a rotatable arm connected therewith for engaging the handle, and a key-operated lock for controlling the position of the said rotatable members.

3. In liquid dispensing apparatus, pumping mechanism comprising a reciprocable rack, an operating crank, and a discharge hose, of a closed casing for inclosing the entire pumping mechanism except the crank and the hose, rotatableflocking means for the crank and hose, an'eccentrlc in conneca member engaged by the eccentric having a portion in position when the crank and hose are locked.

4. The combination with pumping mechanism comprising a reciprocable member, of a closed casing for the pumping mechanism, a rotatable member operated from the outside of the casing, an eccentric carried by the rotatable member, and a member operated by the eccentric and having a projection to engage the rack for holding it in locked position.

5. The combination with pumping mechanism including an operating crank, a reciprocable rack, and a discharge hose, of a closed casing for inclosing the pump with the exception of the crank and the hose, a valve within the casing at the top thereof having means for operating it from without thecasing to control the discharge of liquid from the said hose, and common locking means for engaging the crank, the rack, and the hose.

6. In pumping mechanism, the combination with a reciprocable member, of means for varying the length of stroke thereof to pump different units of quantity, said means comprising an adjustable pin which limits the stroke of the'member, and a rotatable link carried by the pin for engaging the reciprocable member in one position but movable out of the path thereof so that the said member engages the pin.

In pumping mechanism, the combination with a, reciprocable member, of a double stop therefor comprising an adjustable threaded pin, a block adjustably mounted onthe pin, and a member carried by the block and movable into and out of the path of the reciprocable member. pumping 8. In a pump, the combination with a reciprocable member, of a double stop for said member comprising an adjustable pin, and a pivoted member separately adjustable on the pin and movable into and out of position to engage the reciprocable member.

In testimony w ereof I have signed my name to` this specification on September, A. D. 1917. SHERWOOD HINDS.

Witnesses:

J. R. MATLAGK, A. H. Morin.

his 5 day of 

